[F] Fix Calendar.vue recurring events display (#30)

Author: Misaka13514

content/Calendar.vue

@@ -29,7 +29,28 @@ const fetchIcal = async () => {
 
     const _tmp = [];
     for (let k in cal) _tmp.push(cal[k]);
-    const events = _tmp.filter((ev) => ev.type == 'VEVENT' && ev.start && ev.start > now);
+
+    const events: CalendarComponent[] = [];
+    _tmp.forEach((ev) => {
+      if (ev.type !== 'VEVENT' || !ev.start) return;
+
+      if (ev.rrule) {
+        // Expand the recurring events for the next 90 days
+        const limit = new Date(now.getTime() + 90 * 24 * 60 * 60 * 1000);
+        const dates = ev.rrule.between(now, limit, true);
+        dates.forEach((date) => {
+          const clone = { ...ev };
+          clone.start = date;
+          if (ev.end) {
+            const duration = ev.end.getTime() - ev.start.getTime();
+            clone.end = new Date(date.getTime() + duration);
+          }
+          events.push(clone);
+        });
+      } else if (ev.start > now) {
+        events.push(ev);
+      }
+    });
 
     // If there are no upcoming events, show one from the past
     if (events.length == 0) {